Home / 72,346.45-108,640.10-48,805.51

Finding the Fourth Proportional to 72,346.45, 108,640.10 and 48,805.51

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Solution

The fourth proportional to 72,346.45, 108,640.10 and 48,805.51 is: 73,289.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,346.45 : 108,640.10 = 48,805.51 : x
  2. Step 2: Convert to fraction form
    72,346.45/108,640.10 = 48,805.51/x
  3. Step 3: Cross multiply
    72,346.45x = 108,640.10 × 48,805.51
  4. Step 4: Simplify right side
    72,346.45x = 5,302,235,486.95
  5. Step 5: Solve for x
    x = 5,302,235,486.95/72,346.45
  6. Step 6: Final answer
    x = 73,289.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.